Question: What's the difference between do.call function and lapply function in R. When we try to use searchTwitter function to retrieve info from twitter, what

What's the difference between do.call function and lapply function in R. When we try to use searchTwitter function to retrieve info from twitter, what format are the info retrieved as? Is this format open? What are the advantages and disadvantages of this format? Q2. The data below represents blogs posts discussing and linking to a viral video. The data is in the format of source link. For example, huffington.com video would be interrupted as huffingtonpost.com linking directly to the video. myblog.com huffingtonpost.com would be interpreted as myblog.com posting a link to a huffingtonpost.com blog entry about the vide huffingtonpost.com video dailykos.com video wired.com video blogs.cnn.com video blog.cnbc.com blogs.cnn.com myblog.com wired.com huffington.com video blogs.cnn.com video redstate.com video talkingpointsmemo.com video firedoglake.com talkingpointsmemo.com talkleft.com dailykos.com redstate.com huffingtonpost.com ischool.uw.edu wired.com huffington.com video blogs.cnn.com video jeffblog.wordpress.com huffingtonpost.com 1. Convert the data into a adjacency matrix. 2. Plot the network graph. 3. What are the number of possible connections? 4. Calculate the degree centrality of huffingtonpost.com.

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